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    rows <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">,</span>
    cols <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span>

<span class="token keyword">export</span> <span class="token keyword">default</span> <span class="token punctuation">{</span>
    <span class="token function">data</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> <span class="token punctuation">{</span>
            msg<span class="token punctuation">:</span> <span class="token string">''</span><span class="token punctuation">,</span>
            msgList<span class="token punctuation">:</span> <span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">,</span> <span class="token comment">//消息列表</span>
            childWins<span class="token punctuation">:</span> <span class="token punctuation">[</span><span class="token punctuation">]</span> <span class="token comment">//子页面对象集合</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>

    watch<span class="token punctuation">:</span> <span class="token punctuation">{</span>
        <span class="token function">msgList</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
            <span class="token keyword">let</span> $toView <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">querySelector</span><span class="token punctuation">(</span><span class="token string">'.toView'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            $toView<span class="token punctuation">.</span><span class="token function">scrollIntoView</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>

    methods<span class="token punctuation">:</span> <span class="token punctuation">{</span>
        <span class="token function">send</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
            <span class="token comment">//发送消息</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>msg <span class="token operator">==</span> <span class="token string">''</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">return</span><span class="token punctuation">;</span> <span class="token punctuation">}</span>
            <span class="token keyword">let</span> msgObj <span class="token operator">=</span> <span class="token punctuation">{</span>
                msg<span class="token punctuation">:</span> <span class="token keyword">this</span><span class="token punctuation">.</span>msg<span class="token punctuation">,</span>
                sender<span class="token punctuation">:</span> <span class="token string">'parent'</span>
            <span class="token punctuation">}</span><span class="token punctuation">;</span>
            <span class="token keyword">this</span><span class="token punctuation">.</span>msgList<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>msgObj<span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">for</span><span class="token punctuation">(</span><span class="token keyword">let</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">,</span> len <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">.</span>childWins<span class="token punctuation">.</span>length<span class="token punctuation">;</span> i <span class="token operator">&lt;</span> len<span class="token punctuation">;</span> i <span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
                <span class="token keyword">this</span><span class="token punctuation">.</span>childWins<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">.</span><span class="token function">postMessage</span><span class="token punctuation">(</span><span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>msgObj<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token constant">HOST</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token punctuation">}</span>
            <span class="token keyword">this</span><span class="token punctuation">.</span>msg <span class="token operator">=</span> <span class="token string">''</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span><span class="token punctuation">,</span>

        <span class="token function">open</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
            <span class="token comment">//生成子页面，依次展示</span>
            <span class="token keyword">let</span> newWin <span class="token operator">=</span> window<span class="token punctuation">.</span><span class="token function">open</span><span class="token punctuation">(</span><span class="token string">'/#/2'</span><span class="token punctuation">,</span> <span class="token string">'_blank'</span><span class="token punctuation">,</span> <span class="token string">'width=300,height=400,top='</span> <span class="token operator">+</span> <span class="token punctuation">(</span><span class="token number">10</span> <span class="token operator">+</span> cols <span class="token operator">*</span> <span class="token number">400</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token string">',left='</span> <span class="token operator">+</span> <span class="token punctuation">(</span><span class="token number">10</span> <span class="token operator">+</span> rows <span class="token operator">*</span> <span class="token number">300</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">this</span><span class="token punctuation">.</span>childWins<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>newWin<span class="token punctuation">)</span><span class="token punctuation">;</span>
            cols <span class="token operator">++</span><span class="token punctuation">;</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span>cols <span class="token operator">%</span> <span class="token number">2</span> <span class="token operator">==</span> <span class="token number">0</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
                rows <span class="token operator">++</span><span class="token punctuation">;</span>
                cols <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span>
            <span class="token punctuation">}</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>

    <span class="token function">mounted</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token comment">//监听消息</span>
         window<span class="token punctuation">.</span><span class="token function">addEventListener</span><span class="token punctuation">(</span><span class="token string">'message'</span><span class="token punctuation">,</span> e <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
            <span class="token keyword">let</span> msgObj <span class="token operator">=</span> <span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">parse</span><span class="token punctuation">(</span>e<span class="token punctuation">.</span>data<span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">this</span><span class="token punctuation">.</span>msgList<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>msgObj<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token boolean">false</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><h3 id="子页面"><a href="#子页面" aria-hidden="true" class="header-anchor">#</a> 子页面</h3><pre class="language-js"><code><span class="token keyword">let</span> <span class="token constant">HOST</span> <span class="token operator">=</span> <span class="token string">'http://localhost:8080/'</span><span class="token punctuation">;</span>

<span class="token keyword">export</span> <span class="token keyword">default</span> <span class="token punctuation">{</span>
    <span class="token function">data</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> <span class="token punctuation">{</span>
            msg<span class="token punctuation">:</span> <span class="token string">''</span><span class="token punctuation">,</span>
            msgList<span class="token punctuation">:</span> <span class="token punctuation">[</span><span class="token punctuation">]</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>

    watch<span class="token punctuation">:</span> <span class="token punctuation">{</span>
        <span class="token function">msgList</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
            <span class="token keyword">let</span> $toView <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">querySelector</span><span class="token punctuation">(</span><span class="token string">'.toView'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            $toView<span class="token punctuation">.</span><span class="token function">scrollIntoView</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>

    methods<span class="token punctuation">:</span> <span class="token punctuation">{</span>
        <span class="token function">send</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
            <span class="token comment">//发送消息</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>msg <span class="token operator">==</span> <span class="token string">''</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">return</span><span class="token punctuation">;</span> <span class="token punctuation">}</span>
            <span class="token keyword">let</span> msgObj <span class="token operator">=</span> <span class="token punctuation">{</span>
                msg<span class="token punctuation">:</span> <span class="token keyword">this</span><span class="token punctuation">.</span>msg<span class="token punctuation">,</span>
                sender<span class="token punctuation">:</span> <span class="token string">'son'</span>
            <span class="token punctuation">}</span><span class="token punctuation">;</span>
            <span class="token keyword">this</span><span class="token punctuation">.</span>msgList<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>msgObj<span class="token punctuation">)</span><span class="token punctuation">;</span>
            window<span class="token punctuation">.</span>opener<span class="token punctuation">.</span><span class="token function">postMessage</span><span class="token punctuation">(</span><span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>msgObj<span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token constant">HOST</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">this</span><span class="token punctuation">.</span>msg <span class="token operator">=</span> <span class="token string">''</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>

    <span class="token function">mounted</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token comment">//监听消息</span>
        window<span class="token punctuation">.</span><span class="token function">addEventListener</span><span class="token punctuation">(</span><span class="token string">'message'</span><span class="token punctuation">,</span> e <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
            <span class="token keyword">let</span> msgObj <span class="token operator">=</span> <span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">parse</span><span class="token punctuation">(</span>e<span class="token punctuation">.</span>data<span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">this</span><span class="token punctuation">.</span>msgList<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>msgObj<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token boolean">false</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
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